Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun Any of numerous vascular plants that reproduce by means of spores rather than seeds, including the ferns and related plants such as horsetails, and sometimes the club mosses.
from The Century Dictionary.
- noun One of the Pteridophyta.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun Any
simple vascular plant that producesspores , but notseeds , and has thediploid stage of itslife cycle as thedominant form.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun plants having vascular tissue and reproducing by spores
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
[From New Latin Pteridophyta, former division name : Greek pteris, pterid-, fern; see pteridology + Greek phuton, plant; see –phyte.]
from Wiktionary, Creative Commons Attribution/Share-Alike License
From pterido- + -phyte.
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Examples
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There are 794 angiosperm genera, 77% of China's total angiosperm species, 24 gymnosperm, 70 pteridophyte and 102 bryophyte genera.
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A total of 859 vascular plant, 15 pteridophyte, 21 bryophyte and 159 algal species have been recorded.
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Instead of the great extinction event we observe an increase in the diversity of pteridophyte spores.
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